The breadcrumbs are unnecessary shown on the frontend home page of a multistore system when another store has the home page with the same identifier (and my fix)

The wrong condition:

The code is wrong because the $this->_scopeConfig->getValue('web/default/cms_home_page', ScopeInterface::SCOPE_STORE) expression can return not only a page identifier, but a page identifier with suffix too:

So the wrong condition can compare, for example, the home string with the home|5 string.

My fix

Replace the wrong code with the new one:

&& $page->getIdentifier() !== explode('|', $this->_scopeConfig->getValue(

It has been fixed (in 18 month after reporting) in Magento 2.2 on 2017-05-24: